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J.WHYSALL,J1-.& C. M .MERRICK.

MACHINE FOR SHEARING HORSESHOE NAILS.

No.177,047 Patented May2,1876

0 FIG; 4. f

JoawuYsALL, JR, AND CHARLES M. MERRIOK, OF NEW BRIGHTON, PA.

IMPROVEMENT IN MACHINES FOR SHEARlNG HORSESHOE-NAILS.

Specification forming part of Letters Patent No. 177,047, dated May 2,1876; application filed February 25, 1876.

To all whom it may concern:

Be it known that we, JoB WIIYsALL, Jr., and CHARLES M. MERRIGK, of NewBrighton, Beaver county, Pennsylvania, have invented certainImprovements in Machines for Shearing Horseshoe-N ails, of which thefollowing is the specification:

The object of our invention is to rapidly and uniformly shear thesurplus metal from the sides of horseshoe-nail blanks, which have beenotherwise previously finished,'by the combination, in ashearing-machine, of a vibrating or movable plunger having dies insertedand secured therein, a stationary dieshaped to correspond with the pointof the nail desired when sheared,a guide to present the nail centralupon the stationary die, a gage to regulate the length of the nail, anda passage or opening through which the cuttings drop naturall y andentirely clear of the dies.

Figure 1 is a front elevation of our machine; Fig.2, a sectionalelevation on the dotted line arm, Fig. 1; Fig. 3, an enlarged end viewof the slide, with the dies removed; and Fig. 4, a detached perspectiveview.

A is the frame of the machine, consisting of a pedestal, h, andoverhanging arm h, the latter being provided with bearings for thecrankshaft 0 and slotted to receive the slide or plunger B, which isconfined by the cap-plate D which is secured to the frame A by screws a.A bracket, L, bolted to the front of the slide B, extends over andretains in contact with the top of the slide a divided sliding box, K,receiving the eccen trie portion cot the cran kshaft 0. Plate badjustable by set-screws a a, bears upon one side of the slide B andserves to take up wear or lost motion." at the lower end, has slots d dto receive the cutters or dies D D which slots are wider apart at thetop end than at the bottom, with a stationary tongue, 6, between, asclearly shown in Fig. 1, so as to give clearance to the nail aftershearing. This is a very important matter, as otherwise the nail willnot be free after being sheared, but will stick in the dies, and likelybe bent out of shape. These slots also converge toward the back end ofthe slide to give the proper inclination to'the cutters for impartingthe points to the nails. Setscrews f f serve to secure the cutters afterThe slide B,

adjustment. By thus slotting the plunger and inserting the dies in twoseparate pieces we are enabled to use straight or slightly-curved piecesof steel, of just the size required,which pieces are easily removed forgrinding or renewal,,and may be adjusted longitudinally by insertingfilling-pieces above them. D is-a stationary die or anvil of a shape toconform to the point of the nail, and an exact counterpart of the spacebetween the cutting-edges of the dies D l) of the slide B,and is, inlike manner, secured by set-screws ff in the slot (1 of a bed-plate,E,-bolted to the pedestal. A forked plate, G, is bolted to the front andextends beyond the lower end of the slide, the arms 1' i of the forkspreading outward at the bottom, for a purpose described hereafter; and

to a stud. g, at the front of the standard E, is bolted an adjustableplate, F, having a recess, a, open toward the under side. The dies orcutters D D are so adjusted that their lower shearing-edges shall, asthe slide descends, pass parallel to, in close contact with, theinclined faces of the anvil.

The nail blank to be sheared is passed through the recess a in the plateF until its head bears against the side of the plate,which serves as agage to determine the position of the shank upon the anvil D as shown inFig. 2. Upon a rotary motion being imparted to the crank-shaft the boxK, confined vertically between the end of the slide B and theoverhanging arm of the bracket L, will slide longitudinally as the crankimparts a vertical reciprocating movement to the slide. Upon the descentof the cutters the blank will be straddled by the arms of the plate G,and will be centered and held by the latter and by the gage-plateF inits position upon the anvil, between the inclined faces of which and thecutters D I) the sides of the blank are then sheared, imparting thetapering point to the shank and forming the nail.

Inasmuch as the nail-blank is held stationary in a horizontal position,the cuttings are carried downward by the cutters away from the dies,through the opening M, into any suitable receptacle below, instead ofremaining to clog and impede the operation of the machine, asheretofore. A cleaner cut is also produced than when the nail-blank isforced through an opening in a die-plate, and greater facility ofsharpening, adjusting, and repairing the dies is afforded.

The gage-plates F G. serve to adjust and retain the blanks securelywithout interfering shearing-edges descend below the face of the anvil,so that the blank cannot be jammed between them. 1

By the arrangement of the independent cutter-plates in separate openingsor slots d d names to this specification in the presence of twosubscribing witnesses.

great simplicity of construction and accuracy of adjustment are secured,either cutter being readily removed and replaced for sharpening andrepairs without disturbing the other.

We clai.m

1. In a shearing-machine, the slide B, having slots d d, and anintermediate stationary 1 projection, e, to the opposite sides of whichthe j detach ableeutters D D? are clamped, whereby each cutter may beadjusted independently as set forth.

2. Theslide having slots d d, inclined toward each other, intersectingat the rear,witb a sta- V tionarytongue, 6, between, and adapted toreceive independent detachable cutters D D as set forth.

3. The combination, with the: stationary die, of the stationary plate Fand the forked plate G, secured to the slide, substantially as and 1 forthe purpose set forth.

In testimony whereof we have signed our JOB, WHYSALL, J UN. G. M.MERRICK. Witnesses:

CHARLES E. Eos'rnn, COURTNEY A. COOPER.

